Yes, however it is not a 100% fit. If you look towards the bottom of a P99 you'll see that the grip is recessed where the Walther banner is. The S&W doesn't share this indention. While the grip fits, it leaves a lip of 1/16" from the indentation. That said, I had a S&W size small on mine for a month or so while waiting for a Walther one.I noticed that the SW99 backstraps are checked unlike the P99 straps which have dots. Does anyone know if they are interchangeable?
Compact and full size grips are very different and will not work. Just look at any photo of the two guns.Anyone know if the grip from a full size p99 9mm would fit a sw99c 40sw?